Lipid-interacting protein in SNARE complex assembly machinery%3B acts at late step in secretion%3B interacts with membranes through two distinct binding sites%3B shows genetic and physical interactions with Sec1p%3B required for prospore membrane formation during sporulation%3B N-terminus closely associates with plasma membrane%2C C-terminus colocalizes with Sec4p on intracellular membranes%3B relocalizes from bud neck to nucleus upon DNA replication stress