Enone oxidoreductase involved in the biosynthesis of 4-hydroxy-2,5-dimethyl-3(2H)-furanone (HDMF or furaneol), the key flavor compound in strawberries. 4-hydroxy-2,5-dimethyl-furan-3(2H)-one + NADP(+) = 4-hydroxy-5-methyl-2-methylenefuran-3(2H)-one + H(+) + NADPH Monomer. Belongs to the zinc-containing alcohol dehydrogenase family. Quinone oxidoreductase subfamily.