Predicted to enable gap junction channel activity. Acts upstream of or within blood vessel development. Predicted to be located in gap junction. Predicted to be part of connexin complex. Is expressed in several structures, including central nervous system; gonad; heart; intestine; and vascular system. Human ortholog(s) of this gene implicated in coronary artery disease and myocardial infarction. Orthologous to human GJA4 (gap junction protein alpha 4). [provided by Alliance of Genome Resources, Apr 2022]