Predicted to enable cGMP binding activity; intracellular cAMP-activated cation channel activity; and intracellular cGMP-activated cation channel activity. Predicted to be involved in cation transport. Predicted to be located in photoreceptor outer segment. Predicted to be part of transmembrane transporter complex. Human ortholog(s) of this gene implicated in achromatopsia 3 and color blindness. Orthologous to human CNGB3 (cyclic nucleotide gated channel subunit beta 3). [provided by Alliance of Genome Resources, Apr 2022]