3-hydroxy-2-methylbutyryl-CoA dehydrogenase activity
3-hydroxy-2-methylbutyryl-coa dehydrogenase activity
(2S,3S)-3-hydroxy-2-methylbutanoyl-CoA:NAD+ oxidoreductase activity
(2s,3s)-3-hydroxy-2-methylbutanoyl-coa:nad+ oxidoreductase activity