Prevents degradation of interacting proteins like PCL6 by the proteasome. Forms a complex with F-box protein ELA1. Interacts with CIN5, PCL6 and SNF4. During sporulation. In contrast to other members of the family it does not integrate a functional E3 ubiquitin complex. Present with 538 molecules/cell in log phase SD medium. Belongs to the SKP1 family.