The domain within your query sequence starts at position 419 and ends at position 645; the E-value for the CASP_C domain shown below is 1.2e-71.

CAELQIHLTEATAKAVEQKELIARLEQDLSTIQSIQRPDAEGASEQGLEKIPEPIKEATA
LFYGPSMSSSGTLPEGQVDSLLSIISSQRERFRTRNQELEAESRMAQHTIQALQSELDSL
RADNIKLFEKIKFLQSYPGRGIGSDDTELRYSSQYEERLDPFSSFSKRERQRKYLGLSPW
DKATLGMGRLILSNKMARTISFFYTLFLHCLVFLVLYKLAWSESVER

CASP_C

 CASP_C
PFAM accession number:PF08172
Interpro abstract (IPR012955):

This domain is the C-terminal region of the CASP family of proteins. These are Golgi membrane proteins which are thought to have a role in vesicle transport [ (PUBMED:12429822) ].

GO process:intra-Golgi vesicle-mediated transport (GO:0006891)
GO component:integral component of Golgi membrane (GO:0030173)

This is a PFAM domain. For full annotation and more information, please see the PFAM entry CASP_C