SORD, also known as L-iditol 2-dehydrogenase or SORD1, is a 357 amino acid member of the zinc containing alcohol dehydrogenase family. It is widely expressed with highest expression in kidney and in the lens of the eye. SORD enzymatically catalyzes the zinc-dependent interconversion of polyols, such as sorbitol and xylitol, to their respective ketoses.