long-chain (3S)-3-hydroxyacyl-CoA dehydrogenase (NAD+) activity
long-chain (3s)-3-hydroxyacyl-coa dehydrogenase (nad+) activity
Catalysis of the reaction: a long-chain (3S)-3-hydroxy fatty acyl-CoA + NAD+ = a long-chain 3-oxo-fatty acyl-CoA + H+ + NADH. A long-chain fatty acid has an aliphatic tail containing 13 to 22 carbons.