May provide the missing metabolic reaction required to link the mitochondria and the cytoplasm in the mammalian model of one-carbon folate metabolism complementing thus the enzymatic activities of MTHFD2. . This is the function of Ensembl gene identifier ENSG00000120254 (MTHFD1L, methylenetetrahydrofolate dehydrogenase (NADP+ dependent) 1 like).