The domain within your query sequence starts at position 665 and ends at position 786; the E-value for the RPT_1 domain shown below is 1.75e-17.

SQETLPRETPSEGTPPQGTPSEGTPSQETVPQETPPQKLSFQDILTKDRSSQETAYQETP
FQDLVTQNRPSQDSQYKETPSQEIFFQDTPFQNTPSQNIQYQDILSQDKISQGSQTQNSV
SQ

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