Function
D-xylose dehydrogenase involved in the degradation of D-xylose, a major component of hemicelluloses such as xylan. Catalyzes the initial reaction in the xylose utilization pathway by oxydizing D-xylose into D-xylonolactone. Shows some activity toward L-arabinose, but little to none toward D-arabinose, L-xylose, D-ribose, D-galactose, D-glucose or D-glucose-6-phosphate.