The domain within your query sequence starts at position 1021 and ends at position 1204; the E-value for the RPT_2 domain shown below is 2.24e-8.

QTMVQMQRSGDSQPQVNLFSSTKNIMSVQNNGTQQQGNSLFQQGSEMMSLQSGNFLQQSS
HSQAQLFHPQNPIADAQNLSQETQGSIFHSPNPIVHSQTSTASSEQLQPSMFHSQNTIAV
LQGSSVPQDQQSPNIFLSQSSINNLQTNTVAQEEQISFFAAQNSISPLQSTSNTEQQAAF
QQQP

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