The domain within your query sequence starts at position 613 and ends at position 685; the E-value for the RPT_2 domain shown below is 7.13e-5.

LDRRRDGWSLDRDRGDRDLPSSRDQPRKRRLPEESGGRHLDRSPESERPRKQRHCTPSPD
RSPELSSNRDRYN

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