The domain within your query sequence starts at position 879 and ends at position 953; the E-value for the RPT_1 domain shown below is 2.02e-5.

LPAAVSPVSKTAMSSPGNSAPSASTTAVIQNVTGQNIIKQVSITGQLGVKPQTGSSIPLT
ATNFRIQGKDVLRLP

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