Enables fatty-acyl-CoA binding activity; flavin adenine dinucleotide binding activity; and very-long-chain-acyl-CoA dehydrogenase activity. Involved in fatty acid beta-oxidation. Located in mitochondrial inner membrane. Biomarker of non-alcoholic fatty liver disease. Human ortholog(s) of this gene implicated in very long chain acyl-CoA dehydrogenase deficiency. Orthologous to human ACADVL (acyl-CoA dehydrogenase very long chain). [provided by Alliance of Genome Resources, Apr 2022]