Enables bile acid transmembrane transporter activity and oligopeptide transmembrane transporter activity. Involved in several processes, including bile acid and bile salt transport; response to glucocorticoid; and response to lipopolysaccharide. Located in basolateral plasma membrane. Biomarker of cholestasis. Human ortholog(s) of this gene implicated in bilirubin metabolic disorder. Orthologous to several human genes including SLCO1B3 (solute carrier organic anion transporter family member 1B3). [provided by Alliance of Genome Resources, Apr 2022]