Enables NADH dehydrogenase (ubiquinone) activity. Acts upstream of or within mitochondrial electron transport, NADH to ubiquinone. Located in mitochondrion and myelin sheath. Is expressed in several structures, including alimentary system; genitourinary system; integumental system; nervous system; and sensory organ. Human ortholog(s) of this gene implicated in nuclear type mitochondrial complex I deficiency 22. Orthologous to human NDUFA10 (NADH:ubiquinone oxidoreductase subunit A10). [provided by Alliance of Genome Resources, Apr 2022]