Predicted to enable metalloendopeptidase activity. Predicted to be involved in protein processing involved in protein targeting to mitochondrion. Located in mitochondrion. Is expressed in several structures, including adult head; adult heart; dorsal pharyngeal muscle cell; embryonic/larval midgut; and embryonic/larval midgut primordium. Used to study late onset Parkinson's disease. Human ortholog(s) of this gene implicated in Alzheimer's disease and multiple mitochondrial dysfunctions syndrome 6. Orthologous to several human genes including PMPCB (peptidase, mitochondrial processing subunit beta).