Predicted to enable sodium:bicarbonate symporter activity. Acts upstream of or within several processes, including cerebrospinal fluid secretion; mitochondrion distribution; and retina development in camera-type eye. Predicted to be located in apical plasma membrane. Predicted to be active in plasma membrane. Is expressed in several structures, including nervous system; retina; and thyroid gland. Orthologous to human SLC4A5 (solute carrier family 4 member 5). [provided by Alliance of Genome Resources, Apr 2022]