Inorganic phosphate and probable anion transporter (PubMed:18086223). Ascorbate transporter bridging the chloroplast envelope. Transports ascorbate from the cytosol into the chloroplast. Requires chloride ions and the presence of an electrochemical potential across the membrane for activity (PubMed:25557369). Insensitive to dehydroascorbate, p-isoascorbate, inorganic phosphate, glutamate, ATP, p-aminohippuric acid or tetraethylammonium. Ascorbate uptake shows an absolute requirement for Cl(-). Expressed in stems, developing siliques, leaf mesophyll cells and sepals of mature flowers. Not detected in roots. Detected in palisade tissue rather than spongy tissue from the leaves (PubMed:25557369). Expressed in the developing embryo at the upturned-U stage. Expressed with a circadian rhythm showing a peak during the middle of the day (under long day conditions) (PubMed:19513231). Up-regulated by light (PubMed:25557369). No visible phenotype, but decreased reduced ascorbate content in leaves and decreased xanthophyll cycle for heat dissipation of excessive energy in photosynthesis. Belongs to the major facilitator superfamily. Sodium/anion cotransporter (TC 2.A.1.14) family.