Enables dipeptide transmembrane transporter activity and high-affinity oligopeptide transmembrane transporter activity. Involved in several processes, including dipeptide import across plasma membrane; peptidoglycan transport; and regulation of nucleotide-binding activity oligomerization domain containing signaling pathway. Acts upstream of or within oligopeptide transport. Located in membrane. Is integral component of plasma membrane. Is expressed in several structures, including genitourinary system; integumental system; nervous system; nose; and respiratory system. Orthologous to human SLC15A2 (solute carrier family 15 member 2). [provided by Alliance of Genome Resources, Apr 2022]