Secreted aspartic protease; part of the gene cluster that mediates the biosynthesis of the mycotoxin lucilactaene and the lucilactaene-related compound NG-391 that act as cell cycle inhibitors with potent growth inhibitory activity against malarial parasites, moderate growth inhibitory activity against cancer cells, and no activity against bacteria and fungi (PubMed:32043422). Within the cluster, LUC5, LUC6, LUC2 and LUC1 are sufficient for lucilactaene production (Probable). The roles of the other LUC members are yet undetermined (Probable). Belongs to the peptidase A1 family.