  Bogoliubov Fermi surfaces of superconducting states arise from point or line
nodes by breaking time-reversal symmetry. Because line and point nodes often
accompany topologically protected zero-energy surface Andreev bound states
(ASBSs) and thereby lead to a characteristic zero-bias conductance peak (ZBCP)
in tunneling spectroscopy, we investigate how these properties change when the
line and point nodes deform into BFSs. In this paper, we consider spin-quintet
$J_{\rm pair}=2$ pairing states of spin-3/2 electrons with BFSs and calculate
the surface density of states and the charge conductance. Comparing the
obtained results with the cases of spin-singlet $d$-wave pairing states having
the same symmetry, we find that the ZBCP associated with point and/or line
nodes is blunted or split in accordance with the appearance of the BFSs. On the
other hand, when the spin-singlet $d$-wave state has point nodes but does not
have SABS on the surface, we obtain a nonzero small electron conductivity at
zero bias through the zero-energy states on the BFSs.
