Predicted to enable several functions, including magnesium ion binding activity; methenyltetrahydrofolate cyclohydrolase activity; and methylenetetrahydrofolate dehydrogenase [NAD(P)+] activity. Predicted to be involved in tetrahydrofolate interconversion. Predicted to be active in mitochondrion. Biomarker of hepatocellular carcinoma. Orthologous to human MTHFD2 (methylenetetrahydrofolate dehydrogenase (NADP+ dependent) 2, methenyltetrahydrofolate cyclohydrolase). [provided by Alliance of Genome Resources, Apr 2022]