Involved in vision. Interacts with RHO/rhodopsin; the interaction promotes PRCD stability. Localizes to photoreceptor disk membranes in the photoreceptor outer segment. Expressed in retina (at protein level). Palmitoylated at Cys-2 (PubMed:27509380). Palmitoylation is essential for protein stability and trafficking to the photoreceptor outer segment, but does not appear to be essential for membrane localization (PubMed:27509380). Probably palmitoylated by ZDHHC3 (By similarity). Phosphorylated. Belongs to the PRCD family.