Predicted to enable DNA-binding transcription factor activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Predicted to be involved in regulation of transcription by RNA polymerase II. Predicted to be active in nucleus. Human ortholog(s) of this gene implicated in Meier-Gorlin syndrome 7. Orthologous to human FOSB (FosB proto-oncogene, AP-1 transcription factor subunit) and CDC45 (cell division cycle 45).