Enables organic anion transmembrane transporter activity; protein kinase C binding activity; and quaternary ammonium group transmembrane transporter activity. Involved in glutathione transport; quaternary ammonium group transport; and response to organic cyclic compound. Located in apical plasma membrane and basolateral plasma membrane. Orthologous to human SLC22A8 (solute carrier family 22 member 8). [provided by Alliance of Genome Resources, Apr 2022]