NAD(+) + xylitol = D-xylulose + H(+) + NADH Binds 1 zinc ion per subunit. Carbohydrate degradation; L-arabinose degradation via L-arabinitol; D-xylulose 5-phosphate from L-arabinose (fungal route): step 4/5. By xylose. Repressed by glucose. Belongs to the zinc-containing alcohol dehydrogenase family.