Predicted to enable metal ion binding activity and metalloendopeptidase activity. Involved in response to xenobiotic stimulus. Located in mitochondrion. Part of mitochondrial respiratory chain complex III. Human ortholog(s) of this gene implicated in mitochondrial complex III deficiency nuclear type 5. Orthologous to human UQCRC2 (ubiquinol-cytochrome c reductase core protein 2). [provided by Alliance of Genome Resources, Apr 2022]