Solute carrier family 25 member 33 (Slc25a33)

Mitochondrial transporter which imports/exports pyrimidine nucleotides into and from mitochondria. Additionally transports guanine but not adenine (deoxy)nucleotides.

Is inhibited strongly by pyridoxal 5'-phosphate, 4,7-diphenyl-1,10-phenanthroline, tannic acid, and mercurials (mercury dichloride, mersalyl acid, p- hydroxymercuribenzoate). Participates in mitochondrial genome maintenance, regulation of mitochondrial membrane potential and mitochondrial respiration (By similarity).