obsolete UDP-3-O-[3-hydroxymyristoyl] N-acetylglucosamine deacetylase activity (obsolete GO:0008759)
OBSOLETE. Catalysis of the removal of an acetyl group from the 2-N position of glucosamine in the lipid A precursor UDP-3-O-(R-3-hydroxymyristoyl)-N-acetylglucosamine.