UDP-N-acetyl-alpha-D-fucosamine dehydrogenase activity
Catalysis of the reaction: UDP-N-acetyl-alpha-D-fucosamine + NAD(P) = UDP-2-acetamido-4-dehydro-2,6-dideoxy-beta-D-glucose + H+ + NAD(P)H.
GO:0016616
oxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor
is_a