Putative FAD-dependent oxidoreductase involved in the resistance to cercosporin and other singlet oxygen-generating photosensitizers. Translocates from mitochondria to the nucleus under apoptotic conditions, where it degrades DNA and induces apoptosis. Translocates from mitochondrion to the nucleus upon apoptosis induction. Present with 1560 molecules/cell in log phase SD medium. Belongs to the FAD-dependent oxidoreductase family.