Transcription factor that positively regulates the expression of the gene cluster that mediates the biosynthesis of depudecin, a highly oxidized eleven-carbon linear polyketide that acts as a histone deacetylase (HDAC) inhibitor and makes a small contribution to pathogenesis (PubMed:19737099). Affects the expression of all the depudecin cluster genes and impairs the production of depudecin (PubMed:19737099).