Enables purine nucleoside transmembrane transporter activity. Predicted to be involved in several processes, including nucleoside transport; protein localization to cell surface; and purine nucleobase transmembrane transport. Located in brush border membrane. Is expressed in foregut-midgut junction; midgut; and placenta. Orthologous to human SLC28A2 (solute carrier family 28 member 2). [provided by Alliance of Genome Resources, Apr 2022]