Enables PDZ domain binding activity and anion transmembrane transporter activity. Involved in several processes, including anion transport; cellular response to cAMP; and cellular response to fructose stimulus. Located in several cellular components, including apical plasma membrane; brush border membrane; and sperm midpiece. Is integral component of plasma membrane. Orthologous to human SLC26A6 (solute carrier family 26 member 6). [provided by Alliance of Genome Resources, Apr 2022]