Predicted to enable metal ion binding activity. Predicted to be involved in proteolysis. Located in mitochondrion. Part of mitochondrial respiratory chain complex III. Is expressed in several structures, including alimentary system; cardiovascular system; integumental system; midbrain; and telencephalon. 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]