Automated description from the Alliance of Genome Resources (Release 7.0.0)
Enables protein heterodimerization activity. Involved in negative regulation of DNA-templated transcription. Acts upstream of or within maternal behavior; negative regulation of transcription by RNA polymerase II; and startle response. Located in nucleus. Is expressed in several structures, including genitourinary system; limb; lung; and nervous system. Orthologous to human NPAS1 (neuronal PAS domain protein 1).