Involved in the pathway that organizes the shaping and sizing of the prospore membrane (PSM) during sporulation. Probable component of a core structural unit of the scaffold that initiates synthesis of the prospore membrane. Interacts with itself. Interacts with MPC54, NUD1 and SPO21/MPC70. Localizes to the meiotic outer plaque of the spindle pole body (SPB), at the end of the meiotic spindles. Meiosis-specific.