Predicted to enable gap junction hemi-channel activity and identical protein binding activity. Predicted to be involved in several processes, including gap junction-mediated intercellular transport; response to hydrogen peroxide; and response to pH. Located in gap junction and plasma membrane. Is expressed in lens; metanephros; and testis. Used to study cataract 14 multiple types. Human ortholog(s) of this gene implicated in cataract 14 multiple types. Orthologous to human GJA3 (gap junction protein alpha 3). [provided by Alliance of Genome Resources, Apr 2022]