Predicted to enable ATP binding activity; ligase activity; and metal ion binding activity. Predicted to contribute to methylcrotonoyl-CoA carboxylase activity. Located in mitochondrial inner membrane. Is expressed in several structures, including alimentary system; genitourinary system; heart; nervous system; and sensory organ. Human ortholog(s) of this gene implicated in 3-Methylcrotonyl-CoA carboxylase 1 deficiency. Orthologous to human MCCC1 (methylcrotonyl-CoA carboxylase subunit 1). [provided by Alliance of Genome Resources, Apr 2022]