Hydroxynaphthalene reductase-like protein; part of the Pks2 gene cluster that mediates the formation of infectious structures (appressoria), enabling these fungi to kill insects faster (PubMed:29958281). The product of the Pks2 gene cluster is different from the one of Pks1 and has still not been identified (PubMed:29958281). Belongs to the short-chain dehydrogenases/reductases (SDR) family.