  Introduction of spin-orbit coupling (SOC) in a Josephson junction (JJ) gives
rise to unusual Josephson effects. We investigate JJs based on a newly
discovered heterodimensional superlattice V$_5$S$_8$ with a special form of
SOC. The unique homointerface of our JJs enables elimination of extrinsic
effects due to interfaces and disorder. We observe asymmetric Fraunhofer
patterns with respect to both the perpendicular magnetic field and the current.
The asymmetry is influenced by an in-plane magnetic field. Analysis of the
pattern points to a nontrivial spatial distribution of the Josephson current
that is intrinsic to the SOC in V$_5$S$_8$.
