Catalyzes the oxidative deamination and cyclization of 2-amino-3,7-dideoxy-D-threo-hept-6-ulosonic acid (ADH) to yield 3-dehydroquinate (DHQ), which is fed into the canonical shikimic pathway of aromatic amino acid biosynthesis. 2-amino-2,3,7-trideoxy-D-lyxo-hept-6-ulosonate + H2O + NAD(+) = 3-dehydroquinate + H(+) + NADH + NH4(+) Belongs to the archaeal-type DHQ synthase family.