Widely expressed, with highest levels in ovary, testis, epididymis, preputial gland, vomeronasal organ, liver, salivary glands and heart. Also expressed throughout the brain with highest levels in the olfactory bulbs and medulla. Detected at similar levels in gonads of both sexes. Expressed in gonads from 11.5 dpc onward. Expressed in the genital ridge at 11.5 dpc and in the seminiferous tubules at 12.5 dpc. Mutant animals are viable and fertile, with no obvious anatomical defects. Ovaries from mutant females may have an elevated number of polyovular follicles. 25% of mutant males consistently exhibit copulatory behavior toward other males. Belongs to the DMRT family.