Predicted to enable ubiquinol-cytochrome-c reductase activity. Acts upstream of or within brain development. Located in mitochondrion. Is expressed in several structures, including alimentary system; genitourinary system; hemolymphoid system; integumental system; and nervous system. Human ortholog(s) of this gene implicated in mitochondrial complex III deficiency nuclear type 4. Orthologous to human UQCRQ (ubiquinol-cytochrome c reductase complex III subunit VII). [provided by Alliance of Genome Resources, Apr 2022]