Transcription factor that plays a key role in male sex determination and differentiation by controlling testis development and germ cell proliferation. Acts both as a transcription repressor and activator. Expressed throughout the embryo during early development, becoming restricted to the primordial gonads in stage 52 tadpoles. Expressed exclusively in the primordial gonads of both ZW and ZZ tadpoles. Specifically expressed in the somatic cells surrounding primordial germ cells in gonad at stage 50 during sex determination in ZZ and ZW tadpoles (at protein level). Expressed both maternally and zygotically. Expression in maintained in the ZW and ZZ gonads. Belongs to the DMRT family.