Involved in the pathway that organizes the shaping and sizing of the prospore membrane (PSM) during sporulation. May be required to stabilize the outer plaque of the spindle pole body (SPB). Interacts with CNM67, SPO21/MPC70 and NUD1. Localizes to the meiotic outer plaque of the SPB, at the end of the meiotic spindles. Meiosis-specific.