Predicted to enable G protein-coupled photoreceptor activity; retinal binding activity; and spectrin binding activity. Involved in photoreceptor cell maintenance. Acts upstream of or within several processes, including detection of temperature stimulus involved in thermoception; thermotaxis; and visual perception. Located in several cellular components, including photoreceptor inner segment; sperm head plasma membrane; and sperm midpiece. Is expressed in several structures, including brain; eye; and heart. Used to study congenital stationary night blindness autosomal dominant 1 and retinitis pigmentosa 4. Human ortholog(s) of this gene implicated in congenital stationary night blindness autosomal dominant 1; fundus albipunctatus; night blindness; retinitis pigmentosa; and retinitis pigmentosa 4. Orthologous to human RHO (rhodopsin). [provided by Alliance of Genome Resources, Apr 2022]