Transcription factor that regulates the expression of the gene cluster that mediates the biosynthesis of the mycotoxin ascochitine, an o-quinone methide that plays a possible protective role against other microbial competitors in nature and is considered to be important for pathogenicity of legume-associated Didymella species. The deduced amino acid sequence of the orf11 gene lacks a DNA-binding domain and contains only the conserved domain (termed 'middle homology region') that is commonly found in Zn(II)2Cys6-type transcription factors.