obsolete tetrachlorobenzene dioxygenase activity (obsolete GO:0034935)
OBSOLETE. Catalysis of the reaction: 2,4-dichlorotoluene + NADH + H+ + O2 = 4,6-dichloro-3-methyl-cis-1,2-dihydroxycyclohexa-3,5-diene + NAD+.