The domain within your query sequence starts at position 682 and ends at position 730; the E-value for the RPT_6 domain shown below is 7.63e-6.

GKAGERGLKGQKGDAGNPGDPGTPGITGQPGISGEPGIRGPAGPKGEKG

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