Transcription regulator component of the regulatory network controlling carbon source utilization through ubiquitination and deubiquitination involving creA, creB, creC, creD and acrB. Represses the transcription of the alcR, alcA and aldA genes by binding to a GC-rich region in their promoter. Also plays a role in response to carbon starvation and the control of extracellular proteases activity. Interacts with creB. Induced during growth on suberin. Ubiquitinated. Deubiquitinated by creB, probably to control its activity or amount (By similarity). Belongs to the creA/MIG C2H2-type zinc-finger protein family.