Predicted to be involved in mitochondrial respiratory chain complex I assembly. Located in mitochondrial inner membrane. Is expressed in several structures, including alimentary system; brain; genitourinary system; heart; and sensory organ. Human ortholog(s) of this gene implicated in nuclear type mitochondrial complex I deficiency 25. Orthologous to human NDUFB3 (NADH:ubiquinone oxidoreductase subunit B3). [provided by Alliance of Genome Resources, Apr 2022]