S-adenosyl-L-methionine-dependent protein-arginine N-methyltransferase that can catalyze both the mono- and symmetric (type II) dimethylation of the guanidino nitrogens of arginine residues in target proteins (PubMed:18515076). Involved in the control of the cell cycle at the G2/M (mitosis) transition. Cooperates with HSL1 to hyperphosphorylate SWE1, thereby targeting SWE1 for polyubiquitination and subsequent degradation (PubMed:10490630, PubMed:10490648). Acts as a negative regulator of the filamentous growth-signaling pathway through inhibition of STE20 (PubMed:10411908). L-arginyl-[protein] + 2 S-adenosyl-L-methionine = 2 H(+) + N(omega),N(omega)'-dimethyl-L-arginyl-[protein] + 2 S-adenosyl-L-homocysteine Interacts with HSL1 and SWE1. Interacts with the amino-terminal regulatory domain of STE20. Associates with the septin ring of the bud neck during cell division. Phosphorylated in a cell cycle-dependent manner. Present with 1180 molecules/cell in log phase SD medium. Belongs to the class I-like SAM-binding methyltransferase superfamily. Protein arginine N-methyltransferase family.