Function
Essential component of the Ost-alpha/Ost-beta complex, a heterodimer that acts as the intestinal basolateral transporter responsible for bile acid export from enterocytes into portal blood. Efficiently transports the major species of bile acids. May modulate slc51a glycosylation, membrane trafficking and stability activities (By similarity). Able to transport taurocholate, estrone sulfate, digoxin, and prostaglandin E(2), but not p-aminohippurate or S-dinitrophenyl glutathione.