Vacuolar phosphate transporter that probably exports phosphate from the vacuolar lumen to the cytosol. Expression is constitutive and independent of inorganic phosphate concentration and PHO4 activity. Ubiquitinated by RSP5. RSP5-mediated ubiquitination initiates internalization and degradation by the endocytic pathway. Present with 4280 molecules/cell in log phase SD medium. Belongs to the CitM (TC 2.A.11) transporter family. Truncated N-terminus.