Automated description from the Alliance of Genome Resources (Release 3.1.1)
Exhibits G protein-coupled photoreceptor activity. Involved in entrainment of circadian clock by photoperiod; positive regulation of circadian sleep/wake cycle, sleep; and rhodopsin mediated signaling pathway. Localizes to plasma membrane. Is expressed in eye and future brain. Orthologous to human OPN4 (opsin 4).