This domain is the C-terminal region of the CASP family of proteins. It is a Golgi membrane protein which is thought to have a role in vesicle transport [1].

1: CASP, the alternatively spliced product of the gene encoding the CCAAT-displacement protein transcription factor, is a Golgi membrane protein related to giantin. Gillingham AK, Pfeifer AC, Munro S; Mol Biol Cell 2002;13:3761-3774. PMID:12429822