Enables enzyme binding activity. Predicted to be involved in bicarbonate transport; regulation of intracellular pH; and transmembrane transport. Predicted to act upstream of or within cardiac conduction. Predicted to be located in external side of plasma membrane. Predicted to be active in plasma membrane. Orthologous to human SLC4A3 (solute carrier family 4 member 3). [provided by Alliance of Genome Resources, Apr 2022]