Aldehyde reductase that catalyzes the reduction of the aldehyde carbonyl groups on saturated and alpha,beta-unsaturated aldehydes with more than 5 carbons (PubMed:21169366). kcat is 9.1 sec(-1) for butyraldehyde. kcat is 0.4 sec(-1) for (E)-2-pentenal. kcat is 0.6 sec(-1) for (E)-2-hexenal. kcat is 24 sec(-1) for methylglyoxal. Not induced by pathogen infection and not detected in healthy leaves. Belongs to the short-chain dehydrogenases/reductases (SDR) family.