5,10-methenyltetrahydrofolate synthetase deficiency causes a neurometabolic disorder associated with microcephaly, epilepsy, and cerebral hypomyelination.
Rodan LH, Qi W, Ducker GS, Demirbas D, Laine R, Yang E, Walker MA, Eichler F, Rabinowitz JD, Anselm I, et al. Mol Genet Metab. 2018 Sep; 125(1-2):118-126. Epub 2018 Jun 15.