Predicted to enable anion transmembrane transporter activity. Involved in regulation of pH and regulation of protein localization. Located in apical plasma membrane and brush border membrane. Is expressed in central nervous system; cochlear duct; and metanephros. Used to study Pendred Syndrome. Human ortholog(s) of this gene implicated in Pendred Syndrome; autosomal recessive nonsyndromic deafness 4; and goiter. Orthologous to human SLC26A4 (solute carrier family 26 member 4). [provided by Alliance of Genome Resources, Apr 2022]