The domain within your query sequence starts at position 46 and ends at position 164; the E-value for the RPT_2 domain shown below is 3.18e-5.

NFPGRDSLPFDFQGHSGPPFANVEEHSFSYGGRDGPHGDYQGGEGPGHDFRGGDFSSSDF
QSRDSAQLDFRNRDIHSGDFRDREGPPMDYRGGDGTPMDYRGRETPHMNYRDRDSHTVD

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