Predicted to enable monocarboxylate:sodium symporter activity. Predicted to be involved in propanoate transmembrane transport and sodium ion transport. Predicted to act upstream of or within monoatomic anion transport; monocarboxylic acid transport; and nitrate transmembrane transport. Predicted to be located in apical plasma membrane. Orthologous to several human genes including SLC5A8 (solute carrier family 5 member 8).