The domain within your query sequence starts at position 808 and ends at position 1273; the E-value for the RPT_1 domain shown below is 6.25e-39.

ELLFQLIESIRHSSSVNSETKKMLSEITQSTVQSSSVNPVTEEMIEEKYQLLLQSSSVNL
EAENILNVTTQWILQISSVNQGKEMLLLDKIQQILQISSVNPETKDLLLEKIELILQNPG
VHQETKDLLLERIQLILQNSSVQKETKYLLLERIRSILQSSCVQKETKDLLLERIQSLLQ
SSCVQKETKDLLLEKIQLILQNSTVHQETKDLLLERIQLFLQNSTVDQETSYLLLKRIQL
ILQSSSVKKETKEFVLYIIESILHSSSVHQETKDLLFDRVQLILESSSVQQGLKCLLLNM
IQVIFQRTSVQKEMKDLLFNRIPLILESSSVQQETKDKLLDIIQSILQRTSVQEETKDKL
LDIIQSILQRSSVQKDTIDTLLDRIQLILQRTSVQKEMKDFLLDRIKSILESFSVHQETK
KLLLNRIMSILESSTVHQETKKLLLDRIHSILKSSSVQKETKNLLL

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