Enables anion:anion antiporter activity and sodium:bicarbonate symporter activity. Involved in regulation of short-term neuronal synaptic plasticity and visual perception. Acts upstream of or within several processes, including brain development; locomotory exploration behavior; and regulation of cellular pH. Located in several cellular components, including basolateral plasma membrane; dendrite; and neuronal cell body. Is expressed in several structures, including gut; nervous system; sensory organ; and testis. Orthologous to human SLC4A10 (solute carrier family 4 member 10). [provided by Alliance of Genome Resources, Apr 2022]