Belongs to the aldo/keto reductase family. Aldo/keto reductase 2 subfamily. Could be the product of a pseudogene unlikely to encode a functional protein. This is the N-terminal part of an aryl-alcohol dehydrogenase homolog of the AAD family. In strain S288c, a -1 frameshift disrupts the gene coding for this protein and produces two ORFs YFL056C and YFL057C. Because of that it is not part of the S.cerevisiae S288c complete/reference proteome set.