Predicted to enable protein homodimerization activity. Involved in response to low light intensity stimulus. Predicted to be located in photoreceptor outer segment. Predicted to be integral component of plasma membrane. Biomarker of retinal disease. Human ortholog(s) of this gene implicated in Leber congenital amaurosis; eye degenerative disease (multiple); and fundus albipunctatus. Orthologous to human PRPH2 (peripherin 2). [provided by Alliance of Genome Resources, Apr 2022]