NEW YORK (AP) -- Mohammed is so tormented by the dangers facing gays in his native Iran he talks of nightmares in which his family joins the secret police to hunt him down. "If I went back to Iran, I'd be dead in a day," said Mohammed. The 32-year-old designer is one of a growing number of applicants seeking asylum in the United States citing persecution in their native countries for their sexual orientation. In Iran, the penalty for sodomy is death by hanging or stoning. Mohammed, who agreed to discuss his case only on condition that his name not be used, applied for asylum in April 1993 to avoid returning to the Islamic republic. His is one of three test cases being pursued by the Lambda Legal Defense and Education Fund, a gay-rights group, in an effort to ease federal asylum rules for homosexuals. But the Immigration and Naturalization Service says homosexuality does not give anyone an automatic right to asylum. Lawyers handling such cases estimate that since the United States in 1990 repealed a law that excluded all homosexuals from immigration, about 20 homosexuals have applied for sanctuary based on claims of anti-gay persecution abroad. So far, only one person has received asylum based on sexual orientation. Last month, an immigration judge in San Francisco granted refuge to Brazilian Marcelo Tenorio, who, according to lawyers, said he had been hunted down by anti-gay commando groups. That case does not necessarily set a precedent for other cases. Mohammed came to this country in 1984 on a work visa. That expired, and he stayed on illegally. In April, he went to Lambda attorney Noemi Masliah and agreed to become a test case for the gay asylum issue. Mohammed said that because he is a member of HOMAN, an international Persian gay and human rights group, Iran's zealous clerics may know he is homosexual. "I have nightmares about going back to Iran. Often I dream of my parents becoming government agents and turning me in," he said. In addition to Mohammed, Lambda's test cases involve a Russian lesbian in San Francisco and a Nicaraguan gay with AIDS in Texas. "Sexuality can't be changed. That notion is gaining increased acceptance," said Masliah, who is on Lambda's board. If asylum is granted, the individuals would be able to seek permanent residency. At that time, the Nicaraguan also would have to seek a waiver of federal rules barring AIDS patients. "We brought these cases to reflect the full reality of the persecution against lesbians and gay men," said Lambda attorney Suzanne Goldberg.