E3 ubiquitin-protein ligase which functions in cell cycle retarding in conjunction with the UBC4 and UBC13/MMS2 complex, 2 E2 ubiquitin conjugating enzymes. Involved in nutritional control of the cell cycle. Required for proper spindle positioning, likely regulating septin ring deposition at the bud neck. S-ubiquitinyl-[E2 ubiquitin-conjugating enzyme]-L-cysteine + [acceptor protein]-L-lysine = [E2 ubiquitin-conjugating enzyme]-L-cysteine + N(6)-ubiquitinyl-[acceptor protein]-L-lysine. UBC4-dependent autoubiquitination occurs at Lys-211, Lys-258, Lys-288, Lys-310, Lys-333, Lys-343, Lys-346, Lys-366, Lys-406, Lys-412 and Lys-423. UBC4-dependent autoubiquitination is responsible for DMA2 turnover. UBC13/MMS2-dependent autoubiquitination occurs at Lys-258, Lys-310, Lys-346 and Lys-366. Lys-211, Lys-256, Lys-288, Lys-310, Lys-343, Lys-258, Lys-366 and Lys-412 are also ubiquitinated in trans by DMA1 E3 ligase in association with UBC4. Present with 1750 molecules/cell in log phase SD medium. Belongs to the DMA1 family.