Required for the control of apoptosis during postnatal growth. Essential for proteolytic processing of an antiapoptotic form of OPA1 which prevents the release of mitochondrial cytochrome c in response to intrinsic apoptoptic signals (By similarity). Promotes changes in mitochondria morphology regulated by phosphorylation of P-beta domain.
Belongs to the peptidase S54 family.
P-beta is proteolytically processed (beta-cleavage) in a PARL-dependent manner. The cleavage is inhibited when residues Ser-65, Thr-69 and Ser-70 are all phosphorylated.
Mitochondrion inner membrane and Nucleus. Translocated into the nucleus by an unknown mechanism.