May be involved in V.cholerae virulence, as its expression is under the control of ToxR, a transcriptional activator of several genes associated with virulence. an aldehyde + H2O + NAD(+) = a carboxylate + 2 H(+) + NADH Alcohol metabolism; ethanol degradation; acetate from ethanol: step 2/2. Belongs to the aldehyde dehydrogenase family.