Enables fatty-acyl-CoA binding activity; flavin adenine dinucleotide binding activity; and glutaryl-CoA dehydrogenase activity. Involved in fatty acid oxidation and fatty-acyl-CoA biosynthetic process. Located in mitochondrion. Human ortholog(s) of this gene implicated in glutaric acidemia I. Orthologous to human GCDH (glutaryl-CoA dehydrogenase). [provided by Alliance of Genome Resources, Apr 2022]