This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with other acceptors. The systematic name of this enzyme class is (R)-pantolactone:acceptor oxidoreductase (flavin-containing). Other names in common use include 2-dehydropantolactone reductase (flavin), 2-dehydropantoyl-lactone reductase (flavin), and (R)-pantoyllactone dehydrogenase (flavin).
Kataoka M, Shimizu S, Yamada H (1992). "Purification and characterization of a novel FMN-dependent enzyme Membrane-bound L-(+)-pantoyl lactone dehydrogenase from Nocardia asteroides". Eur. J. Biochem.204 (2): 799–806. doi:10.1111/j.1432-1033.1992.tb16698.x. PMID1541293.