The domain within your query sequence starts at position 781 and ends at position 836; the E-value for the RPT_1 domain shown below is 1.77e-5.

VYAETYENQAKTRDDWGQQGLYHCPNFSDVMGRKALPKTDFKAPPGWHWKDDWVVE

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