The domain within your query sequence starts at position 767 and ends at position 843; the E-value for the RPT_1 domain shown below is 3.29e-6.

SVMPQPSPLHTVVPGQVPSGTPVTVIQQTVPQSRMFGRVQSIPACTSTVSQGQQLITTSP
QPMHTSSQQTAAGSQPQ

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