Predicted to enable 3-hydroxyisobutyryl-CoA hydrolase activity. Predicted to be involved in valine catabolic process. Predicted to act upstream of or within branched-chain amino acid catabolic process. Located in mitochondrion. Orthologous to human HIBCH (3-hydroxyisobutyryl-CoA hydrolase). [provided by Alliance of Genome Resources, Apr 2022]