Global regulator that is part of the nutrient-sensing system. In the absence of glucosamine 6-P (GlcN6P), represses the phosphotransferase system (PTS) specific for the uptake of N-acetylglucosamine (PTSNag), and genes involved in the metabolism of chitin, as well as several genes involved in development, thereby linking carbon availability to morphogenesis (PubMed:15247334, PubMed:16925557). Also regulates the expression of the ABC transporters DasABC and NgcEFG, which are involved in N,N'-diacetylchitobiose ((GlcNAc)2) uptake (PubMed:17351098, PubMed:30089751). Binds to the DNA consensus sequence 5'-ACTGGTCTAGACCACT-3' (PubMed:15247334, PubMed:16925557). Binding to the target genes is abolished by GlcN6P, a central molecule in N-acetylglucosamine metabolism. Induced by (GlcNAc)2 and (GlcNAc)3. Deletion of the gene results in a bald phenotype, mutant fails to produce aerial hyphae and spores on glucose-containig media. The mutant is arrested at an early stage of the developmental program.