The domain within your query sequence starts at position 771 and ends at position 840; the E-value for the RPT_1 domain shown below is 4.03e-5.

EGPRPKGPRFEGNRPDGPRPRYESHPAEGTKSKWGTIPRGPASQFYITPNTSLSPRQSGP
QWKGPKATVG

This is a significant internal repeat in the query protein sequence, as detected by the Prospero program.