A gay youth support group is celebrating after a Victorian court upheld a discrimination complaint against a Christian Brethren-run business that refused its attempt to book accommodation because of the church's stance on homosexuality.

Suicide prevention group WayOut, which works with young same-sex attracted people from regional Victoria, had tried to book the Christian Youth Camps' Phillip Island Adventure Resort in June 2007 for a workshop on fighting homophobia.

WayOut launched the legal action in the Victorian Civil and Administrative Tribunal arguing that church-run businesses should not be exempt from state laws banning discrimination.

The Christian Brethren said the booking was cancelled because WayOut promotes homosexual activity which, it said, was against the denomination's understanding of the bible.

Program co-ordinator Sue Hackney said the findings delivered by Judge Felicity Hampel on Friday would "go a long way" to showing young people that homophobia was not acceptable to the broader community.