The domain within your query sequence starts at position 665 and ends at position 754; the E-value for the RPT_2 domain shown below is 5.76e-7.

CTGNRTFSYDSQACDRTCLSLSDRETECHVSPVPVDGCNCPEGTYLNHKAECVHKAQCPC
LLDDYKFVQADQSTMINGVICHCINGRLSC

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