Automated description from the Alliance of Genome Resources (Release 5.2.0)
Enables DNA binding activity; DNA-binding transcription factor binding activity; and kinase binding activity. Involved in several processes, including entrainment of circadian clock by photoperiod; histone modification; and regulation of gene expression. Acts upstream of or within circadian rhythm; negative regulation of transcription by RNA polymerase II; and response to light stimulus. Located in nucleus. Is expressed in several structures, including genitourinary system; nervous system; sensory organ; thymus; and tooth. Used to study attention deficit hyperactivity disorder. Orthologous to human PER1 (period circadian regulator 1).