Nucleobase-proton symporter that facilitates the uptake of nucleobases in the cells. Can transport adenine, guanine and uracil (PubMed:22616996, PubMed:22474184, PubMed:24621654). Contributes to uracil import into plastids for plastidic uracil salvage which is essential for plant growth and development (PubMed:22474184). Expressed in roots, leaves, stems, flowers, siliques and seeds. No visible phenotype under normal growth conditions. Belongs to the purine-cytosine permease (2.A.39) family. Truncated N-terminus. Truncated N-terminus.