Transcription factor that regulates asexual reproduction (PubMed:11994146, PubMed:20465521). Binds the StuA-response elements (StRE) with the consensus sequence 5'-(A/T)CGCG(T/A)N(A/C)-3' at the promoters of target genes (By similarity). Required for accurate spatial organization of the developing conidiophore (PubMed:11994146, PubMed:20465521). Primarily involved in the formation of the uninucleate sterigmata, which arise by budding in this multicellular structure (PubMed:11994146). Required for metula and phialide formation during conidiation but is not required for dimorphic growth (PubMed:11994146). Only expressed at detectable levels in conidiating cells, but not in vegetative hyphae or yeast cells (PubMed:11994146). Leads to conidiophores that lack both metulae and phialides and that consist of a stalk from which chains of conidia bud directly (PubMed:11994146, PubMed:20465521). Belongs to the EFG1/PHD1/stuA family.