Enables identical protein binding activity. Predicted to be involved in membrane protein proteolysis and protein quality control for misfolded or incompletely synthesized proteins. Located in mitochondrion. Human ortholog(s) of this gene implicated in Perrault syndrome. Orthologous to human CLPP (caseinolytic mitochondrial matrix peptidase proteolytic subunit). [provided by Alliance of Genome Resources, Apr 2022]