Predicted to enable oxidoreductase activity. Involved in response to antibiotic; response to hormone; and response to xenobiotic stimulus. Located in mitochondrial membrane. Part of mitochondrial respiratory chain complex III. Human ortholog(s) of this gene implicated in mitochondrial complex III deficiency. Orthologous to several human genes including UQCRFS1 (ubiquinol-cytochrome c reductase, Rieske iron-sulfur polypeptide 1). [provided by Alliance of Genome Resources, Apr 2022]